Download archive tar.gz from here
sudo tar -C /usr/local -xzf go1.2.1.linux-amd64.tar.gz
export PATH=$PATH:/usr/local/go/bin
export GOROOT=/usr/local/go
go version
`go version go1.2.1 linux/amd64`
Download archive tar.gz from here
sudo tar -C /usr/local -xzf go1.2.1.linux-amd64.tar.gz
export PATH=$PATH:/usr/local/go/bin
export GOROOT=/usr/local/go
go version
`go version go1.2.1 linux/amd64`